Calculation and Evaluation on Dynamic Characteristics of Bridge-Subgrade Transition Section in Speed-up Railway Line

Abstract:

Combined with the reconstruction of the existing railway line with speed of 200km/h, a calculation model of bridge-subgrade transition section was developed by the theory of vehicle-track-bridge/subgrade coupling dynamics. The simulation program was compiled, which could be used to calculate and evaluate the dynamic characteristics of transition section in speed-up line. The results of field reconnaissance operations and calculations show that the track structure stiffness in transition section is uneven, or even part of the function fails, which can not meet the requirements of speed-raising. Some measures, such as transition section database establishment, class-based management implementation, separate design and separate reinforcement adoption, can be used for the transition sections, which are listed as the objects of emphatic assessment. In addition, the evaluation system will provide theoretical support and references for design and construction in reconstruction project of transition section.

• Periodical: Applied Mechanics and Materials (Volumes 256-259)
• Pages: 1821-1825
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.256-259.1821
• Online since: December 2012
• Authors: Bin Zhang, Xiu Shao Zhao, Qing Jie Liu
• Keywords: Bridge-Subgrade Transition Section, Dynamic Characteristic, Evaluation System, Speed-Raising of Existing Railway

References

[1] A.D. Kerr and B.E. Moroney: Track transition problems and remedies. In Bulletin 742, American Railway Engineering Association (1993), pp.267-298.

[2] D. Li, L. Smith, B. Doe, D. Otter and S. Uppal: Study of bridge approach and track transition degradation-factors and mitigation. Federal Railroad Administration, Contract DTFR53-01-H- 00305. (2003).

[3] B.E. Moroney: A study of railroad track transition points and problems. Master's Thesis, Department of Civil Engineering, University of Delaware. (1991).

[4] C.D. Sasaoka and D. Davis: Implementing track transition solutions for heavy axle load service. In Proceedings of the AREMA 2005 Annual Conference, AREMA. (2005).

[5] D. Li and D. Davis: J. Geotech. Geoenviron. Eng., Vol. 131(11) (2005), pp.1392-1398.

[6] R. David and D. Li: Design of track transitions. Research Results Digest 79. Transportation Technology Center, Inc., Pueblo, Colorado. (2006).

[7] A. Namura and T. Suzuki: Q. Rep. RTRI, Vol. 48(3) (2007), pp.176-182.

[8] O.C. Zienkiewicz and R.L. Taylor: The finite element method, 5th edition, (Elsevier Butterworth Heinemann, UK 2000).

[9] X. Lei and N.A. Noda: J. Sound Vib., Vol. 258(1) (2002), pp.147-165.

[10] C.G. Koh, J.S.Y. Ong, D.K. H Chua and J. Feng: Int. J. Numer. Meth. Eng., Vol. 56(11) (2003), pp.1549-1567.

[11] F. Yang and A.F. Ghislain: J. Earthquake Eng. Struct. Dyn., Vol. 25(1) (1996), pp.195-215.

[12] X. Lei and B. Zhang: J. V. C., Vol. 17(11) (2011), pp.1733-1747.

[13] X. Lei and B. Zhang: Proc. I. Mech.E., Part F: JRRT, Vol. 224(6) (2010), pp.592-604.

[14] Ministry of Railway of the People's Republic of China: Temporary Regulation for the Strength Design and Test Identify of Railway Vehicle in 200km/h and Higher Speed Class, (China Railway Publishing House, Beijing 2000, in Chinese).

[15] Ministry of Railway of the People's Republic of China: Temporary Regulation for the Design of Beijing-Shanghai High-speed Railway, (China Railway Publishing House, Beijing 2004, in Chinese).

DOI: 10.18057/icass2018.p.035